Tunnel boring machine - Wikipedia

Project Stage 1 – Tunneling | Joint Venture Züblin-Jäger

TBM Tunneling. The Main Tunnel "Yael" will be driven with an Atlas Copco Double-Gripper-Hard-Rock Tunnel Boring Machine (TBM). The TBM "ISABEL" is specialist to drive through hard rock material and will start by the end of 2016.

HARD ROCK TBMs - Tunneling Short Course

Underground work - Tunnel Boring Machines, aeronautics and ...

Hard rock machines. Our product offer is built around three types of tunneling machines for all types of geology, whatever the hardness of the rocks and the diameter to dig: single shield machines, telescopic shield machines and gripper machines.